Please read Malachi 3:6-13.
Now here we have,
1. A prophecy of the appearing.
That is, of his forerunner John the Baptist, which the prophet Isaiah had foretold (Isaiah 40:3), as the preparing of the way of the Lord, to which this seems to have a reference, for the words of the latter prophets confirmed those of the former: Behold, I will send my messenger, or I do send him, or I am sending him.
2. A promise of His coming.
“I am determined to send him; he will now shortly come, and will not come unsent, though to a careless generation he comes unsent for.”
Notice that, he is God’s messenger; that is his office; he is Malachi (so the word is), the same with the name of this prophet; he is my angel, my ambassador. John Baptist had his commission from heaven, and not of men. All held John Baptist for a prophet, for he was God’s messenger, as the prophets were, and came on the same errand to the world that they were sent upon–to call men to repentance and reformation.
In this chapter we have three important lessons:
A. A promise of the coming of the Messiah, and of his forerunner; and the errand he comes upon is here particularly described, both the comfort which his coming brings to his church and people and the terror which it will bring to the wicked, Malachi 3:1-6.
B. A reproof of the Jews for their corrupting God’s ordinances and sacrilegiously robbing him of his dues, with a charge to them to amend this matter, and a promise that, if they did, God would return in mercy to them, Malachi 3:7-12.
C. A picture of the wickedness of the wicked that speak against God (Malachi 3:13-15), and of the righteousness of the righteous that speak for him, with the precious promises made to them, Malachi 3:6-18.
The wall had been rebuilt and they people were obeying outwardly, in form, rituals, etc.
They kept the feasts and the fasts. They had a form of godliness, but denying the power thereof. So, when God makes these charges they were shocked, to say the least.
“What do you mean we have failed? Surely you are not accusing us?